President Trump didn't tweet during the Comey hearing, but Donald Jr. did

Fired FBI Director James Comey testifies how several concerns led him to document all his interactions with Donald Trump after the election.

Jessica Estepa , USA TODAY , TEGNA2:33 PM. EDT June 08, 2017

Donald Trump Jr. delivers a speech during a ceremony for the official opening of the Trump International Tower and Hotel on February 28, 2017 in Vancouver, Canada. (Photo: Jeff Vinnick/Getty Images, 2017 Getty Images)

Donald Trump Jr. and Eric Trump took over as co-heads of the Trump Organization after their father won the election. Sister Ivanka Trump is working for the administration and has not tweeted since Wednesday.